;;; test-ob.el --- tests for ob.el  -*- lexical-binding: t; -*-

;; Copyright (c) 2010-2015, 2019 Eric Schulte
;; Authors: Eric Schulte, Martyn Jago

;; This file is not part of GNU Emacs.

;; This program is free software; you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation, either version 3 of the License, or
;; (at your option) any later version.

;; This program is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
;; GNU General Public License for more details.

;; You should have received a copy of the GNU General Public License
;; along with this program.  If not, see <https://www.gnu.org/licenses/>.

;;; Code:

(require 'ob-core)
(require 'org-src)
(require 'ob-ref)
(require 'org-table)
(eval-and-compile (require 'cl-lib))

(ert-deftest test-ob/indented-cached-org-bracket-link ()
  "When the result of a source block is a cached indented link it
should still return the link."
  (should
   (let ((default-directory temporary-file-directory))
     (org-test-with-temp-text
	 "
* Test
  #+<point>BEGIN_SRC emacs-lisp :results file :file test.txt :cache yes
    (message \"test\")
  #+END_SRC"
       ;; Execute twice as the first time creates the cache.
       (org-babel-execute-src-block)
       (string= (expand-file-name "test.txt")
		(org-babel-execute-src-block))))))

(ert-deftest test-ob/multi-line-header-regexp ()
  (should(equal "^[ \t]*#\\+headers?:[ \t]*\\([^\n]*\\)$"
		org-babel-multi-line-header-regexp))
  ;;TODO can be optimised - and what about blah4 blah5 blah6?
  (should (string-match
	   org-babel-multi-line-header-regexp
	   "   \t #+headers: blah1 blah2 blah3 \t\n\t\n blah4 blah5 blah6 \n"))
  (should
   (equal
    "blah1 blah2 blah3 \t"
    (match-string
     1
     "   \t #+headers: blah1 blah2 blah3 \t\n\t\n blah4 blah5 blah6 \n")))

  ;;TODO Check - should this fail?
  (should
   (not (org-test-string-exact-match
	 org-babel-multi-line-header-regexp
	 "   \t #+headers : blah1 blah2 blah3 \t\n\t\n blah4 blah5 blah6 \n"))))

(ert-deftest test-ob/src-block-regexp ()
  (let ((test-block
	 (concat
	  "#+begin_src language -n-r-a-b -c :argument-1 yes :argument-2 no\n"
	  "echo this is a test\n"
	  "echo Currently in ' $PWD\n"
	  "#+end_src"))
	(language "language")
	(flags "-n-r-a-b -c ")
	(arguments ":argument-1 yes :argument-2 no")
	(body "echo this is a test\necho Currently in ' $PWD\n"))
    (should (string-match org-babel-src-block-regexp test-block))
    (should (string-match org-babel-src-block-regexp (upcase test-block)))
    (should (equal language (match-string 2 test-block)))
    ;;TODO Consider refactoring
    (should (equal flags (match-string 3 test-block)))
    (should (equal arguments (match-string 4 test-block)))
    (should (equal body (match-string 5 test-block)))
    ;;no switches
    (should (org-test-string-exact-match
     	     org-babel-src-block-regexp
     	     (replace-regexp-in-string flags "" test-block)))
    ;;no header arguments
    (should (org-test-string-exact-match
     	     org-babel-src-block-regexp
	     (replace-regexp-in-string arguments "" test-block)))
    ;; should be valid with no body
    (should (org-test-string-exact-match
	     org-babel-src-block-regexp
	     (replace-regexp-in-string body "" test-block)))))

(ert-deftest test-ob/default-inline-header-args ()
  (should(equal
	  '((:session . "none")
	    (:results . "replace")
	    (:exports . "results")
	    (:hlines  . "yes"))
	  org-babel-default-inline-header-args)))

(ert-deftest ob-test/org-babel-combine-header-arg-lists ()
  (let ((results (org-babel-combine-header-arg-lists
                  '((foo  . :any)
                    (bar)
                    (baz  . ((foo bar) (baz)))
                    (qux  . ((foo bar baz qux)))
                    (quux . ((foo bar))))
                  '((bar)
                    (baz  . ((baz)))
                    (quux . :any)))))
    (dolist (pair '((foo  . :any)
		    (bar)
		    (baz  . ((baz)))
		    (quux . :any)
		    (qux  . ((foo bar baz qux)))))
      (should (equal (cdr pair)
                     (cdr (assoc (car pair) results)))))))

;;; ob-get-src-block-info
(ert-deftest test-ob/get-src-block-info-language ()
  (org-test-at-marker nil org-test-file-ob-anchor
    (let ((info (org-babel-get-src-block-info)))
      (should (string= "emacs-lisp" (nth 0 info))))))

(ert-deftest test-ob/get-src-block-info-body ()
  (org-test-at-marker nil org-test-file-ob-anchor
    (let ((info (org-babel-get-src-block-info)))
      (should (string-match (regexp-quote org-test-file-ob-anchor)
			    (nth 1 info))))))

(ert-deftest test-ob/get-src-block-info-tangle ()
  (org-test-at-marker nil org-test-file-ob-anchor
    (let ((info (org-babel-get-src-block-info)))
      (should (string= "no" (cdr (assq :tangle (nth 2 info))))))))

(ert-deftest test-ob/post-header-arguments ()
  "When the result of a post-processing source block is an empty
list, then it should be treated as such; not as the symbol nil."
  (should
   (let ((default-directory temporary-file-directory))
     (org-test-with-temp-text
         "
#+name: addheader
#+header: :var rows=\"\"
#+begin_src elisp :hlines yes
  '()
#+end_src
#+header: :post addheader(*this*)
#+<point>begin_src emacs-lisp :results table
#+end_src
#+RESULTS:
: nil"
       (org-babel-execute-src-block)
       (goto-char (1- (point-max)))
       (equal (buffer-substring-no-properties
               (line-beginning-position)
               (line-end-position))
              "#+RESULTS:")))))

(ert-deftest test-ob/elisp-in-header-arguments ()
  "Test execution of elisp forms in header arguments."
  (org-test-with-temp-text-in-file "

* elisp forms in header arguments
  :PROPERTIES:
  :header-args: :var prop = (* 7 6)
  :END:
#+begin_src emacs-lisp
  prop
#+end_src"
    (goto-char (point-min))
    (org-babel-next-src-block)
    (should (= 42 (org-babel-execute-src-block)))))

(ert-deftest test-ob/simple-named-code-block ()
  "Test that simple named code blocks can be evaluated."
  (org-test-with-temp-text-in-file "

#+name: i-have-a-name
#+begin_src emacs-lisp
  42
#+end_src"
    (org-babel-next-src-block 1)
    (should (= 42 (org-babel-execute-src-block)))))

(ert-deftest test-ob/simple-variable-resolution ()
  "Test that simple variable resolution is working."
  (org-test-with-temp-text-in-file "

#+name: four
#+begin_src emacs-lisp
  (list 1 2 3 4)
#+end_src

#+begin_src emacs-lisp :var four=four
  (length four)
#+end_src"

    (org-babel-next-src-block 2)
    (should (= 4 (org-babel-execute-src-block)))
    (forward-line 5)
    (should (string= ": 4" (buffer-substring
			    (point-at-bol)
			    (point-at-eol)))))
  ;; Test reading lists.
  (org-test-with-temp-text-in-file "

#+NAME: example-list
- simple
  - not
  - nested
- list

<point>#+BEGIN_SRC emacs-lisp :var x=example-list
(print x)
#+END_SRC"

    (should (equal '("simple" "list") (org-babel-execute-src-block)))
    (forward-line 5)
    (should (string=
             "| simple | list |"
             (buffer-substring
	      (point-at-bol)
	      (point-at-eol))))))

(ert-deftest test-ob/block-content-resolution ()
  "Test block content resolution."
  (org-test-with-temp-text-in-file "

#+name: four
#+begin_src emacs-lisp
  (list 1 2 3 4)
#+end_src

#+begin_src emacs-lisp :var four=four[]
  (length (eval (car (read-from-string four))))
#+end_src"
    (org-babel-next-src-block 2)
    (should (= 4 (org-babel-execute-src-block)))))

(ert-deftest test-ob/cons-cell-as-variable ()
  "Test that cons cell can be assigned as variable."
  (org-test-with-temp-text "

#+name: cons
#+begin_src emacs-lisp
  (cons 1 2)
#+end_src

#+begin_src emacs-lisp :var x=cons
  x
#+end_src"

    (org-babel-next-src-block 2)
    (should (equal (cons 1 2) (org-babel-execute-src-block)))))

(ert-deftest test-ob/multi-line-header-arguments ()
  "Test that multi-line header arguments and can be read."
  (org-test-with-temp-text-in-file "

#+headers: :var letters='(a b c d e f g)
#+begin_src emacs-lisp :var numbers='(1 2 3 4 5 6 7)
  (require 'cl-lib)
  (cl-map 'list #'list numbers letters)
#+end_src"
    (org-babel-next-src-block)
    (let ((results (org-babel-execute-src-block)))
      (should (eq 'a (cadr (assoc 1 results))))
      (should (eq 'd (cadr (assoc 4 results)))))))

(ert-deftest test-ob/parse-header-args ()
  (org-test-with-temp-text-in-file "

#+begin_src example-lang :session     :results output :var num=9
  the body
#+end_src"

    (org-babel-next-src-block)
    (let* ((info (org-babel-get-src-block-info))
	   (params (nth 2 info)))
      (message "%S" params)
      (should (equal "example-lang" (nth 0 info)))
      (should (string= "the body" (org-trim (nth 1 info))))
      (should-not (member '(:session\ \ \ \ ) params))
      (should (equal '(:session) (assq :session params)))
      (should (equal '(:result-type . output) (assq :result-type params)))
      (should (equal '(num . 9) (cdr (assq :var params)))))))

(ert-deftest test-ob/parse-header-args2 ()
  (org-test-with-temp-text-in-file "

* resolving sub-trees as references

#+begin_src emacs-lisp :var text=d4faa7b3-072b-4dcf-813c-dd7141c633f3
  (length text)
#+end_src

#+begin_src org :noweb yes
  <<simple-subtree>>
  <<d4faa7b3-072b-4dcf-813c-dd7141c633f3>>
#+end_src

** simple subtree with custom ID
   :PROPERTIES:
   :CUSTOM_ID: simple-subtree
   :END:
this is simple"

    (should (string-match (regexp-quote "this is simple")
			  (org-babel-ref-resolve "simple-subtree")))
    (org-babel-next-src-block)
    (should (= 14 (org-babel-execute-src-block)))))

(defun test-ob/get-src-block-property (properties)
  "Get plist of PROPERTIES and values for the first src block in buffer.
PROPERTIES is a list of property keywords or a single keyword."
  (org-with-wide-buffer
   (goto-char (point-min))
   (org-babel-next-src-block)
   (org-set-regexps-and-options)
   (let ((all-props (nth 2 (org-babel-get-src-block-info))))
     (if (listp properties)
         (apply #'nconc (mapcar (lambda (p) (list p (cdr (assoc p all-props)))) properties))
       (list properties (cdr (assoc properties all-props)))))))

(ert-deftest test-ob/merge-params ()
  "Test the output of merging multiple header parameters."
  (should ;; 1. inherit-document-header-args
   (equal '(:tangle "/tmp/default_tangle.txt")
          (org-test-with-temp-text
              "\
#+PROPERTY: header-args :tangle /tmp/default_tangle.txt
* One
#+begin_src conf
#+end_src"
            (test-ob/get-src-block-property :tangle))))
  (should-not ;; 2. inherit-document-header-with-local-sync-action
   ;; This should pass with newer merge function with multiple tangle parameters
   (equal '(:tangle "/tmp/default_tangle.txt skip")
          (org-test-with-temp-text
              "\
#+PROPERTY: header-args :tangle /tmp/default_tangle.txt
* Two
#+begin_src conf :tangle skip
#+end_src"
            (test-ob/get-src-block-property :tangle))))
  (should ;; 3. override-document-header-with-local-tfile
   (equal '(:tangle "randomfile sync")
          (org-test-with-temp-text
              "\
#+PROPERTY: header-args :tangle /tmp/default_tangle.txt
* Three
#+begin_src conf :tangle randomfile sync
#+end_src"
            (test-ob/get-src-block-property :tangle))))
  (should  ;; 4. override-document-and-parent-header-with-local-tfile-and-action
   (equal '(:tangle "randomfile sync")
          (org-test-with-temp-text
              "\
#+PROPERTY: header-args :tangle /tmp/default_tangle.txt
* Four
:PROPERTIES:
:header-args: :tangle \"newfile.txt\" import
:END:
** A
#+begin_src conf :tangle randomfile sync
#+end_src"
            (test-ob/get-src-block-property :tangle))))
  (should ;; 5. test-tangle-and-default-results-param-together
   (equal '(:tangle "randomfile" :results "replace")
          (org-test-with-temp-text
              "\
* Five
#+begin_src conf  :tangle randomfile
#+end_src"
            (test-ob/get-src-block-property '(:tangle :results)))))
  (should-not  ;; 6. inherit-document-tfile-take-only-last-local-sync-action
   ;; This should pass with newer merge function with multiple tangle parameters
   (equal '(:tangle "/tmp/default_tangle.txt export")
          (org-test-with-temp-text
              "\
#+PROPERTY: header-args :tangle /tmp/default_tangle.txt
* Six
#+begin_src conf  :tangle import export
#+end_src"
            (test-ob/get-src-block-property :tangle))))
  (should-not  ;; 7. ignore-document-header-take-last-tfile-and-sync-action
   ;; This should pass with newer merge function with multiple tangle parameters
   (equal '(:tangle "fname2 export")
          (org-test-with-temp-text
              "\
#+PROPERTY: header-args :tangle /tmp/default_tangle.txt
* Seven
#+begin_src conf  :tangle fname1 fname2 sync export
#+end_src"
            (test-ob/get-src-block-property :tangle))))
  (should  ;; 8. test-results-and-exports
   (equal '(:results "wrap file replace" :exports "code")
          (org-test-with-temp-text
              "\
* Eight
#+begin_src sh :results file wrap
#+end_src"
            (test-ob/get-src-block-property '(:results :exports)))))
  (should  ;; 9. do-not-tangle-this-block --
   (equal '(:tangle "no")
          (org-test-with-temp-text
              "\
#+PROPERTY: header-args :tangle /tmp/default_tangle.txt
* Nine
#+begin_src conf :tangle no
#+end_src"
            (test-ob/get-src-block-property :tangle))))
  (should  ;; 10. test-tangle-exports-and-comments
   (equal '(:tangle "foo.txt" :exports "verbatim code" :comments "link")
          (org-test-with-temp-text
              "\
#+PROPERTY: header-args :tangle /tmp/default_tangle.txt
* Ten
:PROPERTIES:
:header-args: :tangle no :exports verbatim
:END:
#+begin_src conf :tangle \"foo.txt\" :comments link
#+end_src"
            (test-ob/get-src-block-property '(:tangle :exports :comments)))))
  (should-not  ;; 11. override-document-and-heading-tfile-with-yes
   ;; This should pass with newer merge function with multiple tangle parameters
   (equal '(:tangle "foo.txt")
          (org-test-with-temp-text
              "\
#+PROPERTY: header-args :tangle /tmp/default_tangle.txt
* Eleven
:PROPERTIES:
:header-args: :tangle \"foo.txt\"
:END:
#+begin_src conf :tangle yes
#+end_src"
            (test-ob/get-src-block-property :tangle))))
  (should  ;; 12. tangle-file-with-spaces
   (equal '(:tangle "file with spaces.txt")
          (org-test-with-temp-text
              "\
* Twelve
:PROPERTIES:
:header-args: :tangle \"foo.txt\"
:END:
** A
#+begin_src conf :tangle \"file with spaces.txt\"
#+end_src"
            (test-ob/get-src-block-property :tangle)))))

(ert-deftest test-ob/inline-src-blocks ()
  (should
   (= 1
      (org-test-with-temp-text
	  "In the middle <point>src_emacs-lisp{(+ 0 1)} of a line"
	(org-babel-execute-src-block))))
  (should
   (= 2
      (org-test-with-temp-text
	  "One at the end of a line: <point>src_emacs-lisp{(+ 1 1)}"
	(org-babel-execute-src-block))))
  (should
   (= 3
      (org-test-with-temp-text
	  "src_emacs-lisp{(+ 2 1)} at the beginning of a line."
	(org-babel-execute-src-block))))
  (should
   (= 4
      (org-test-with-temp-text
	  "In the middle <point>src_emacs-lisp[:results silent\
 :exports code]{(+ 3 1)} of a line"
	(org-babel-execute-src-block))))
  (should
   (= 5
      (org-test-with-temp-text
	  "One at the end of a line: <point>src_emacs-lisp[:results silent\
 :exports code]{(+ 4 1)}"
	(org-babel-execute-src-block))))
  (should
   (= 6
      (org-test-with-temp-text
	  "src_emacs-lisp[:results silent :exports code]{(+ 5 1)}\
at the beginning of a line."
	(org-babel-execute-src-block))))
  (should
   (= 7
      (org-test-with-temp-text
	  "One also evaluated: <point>src_emacs-lisp[:exports both\
 :results silent]{(+ 6 1)}"
	(org-babel-execute-src-block)))))

(ert-deftest test-ob/inline-src_blk-default-results-replace-line-1 ()
  (let ((test-line "src_sh[:results output]{echo 1}")
	(org-babel-inline-result-wrap "=%s="))
    ;; src_ at bol line 1...
    (org-test-with-temp-text
	test-line
      (goto-char (point-min)) (org-babel-execute-maybe)
      (should (string=
                      (concat test-line " {{{results(=1=)}}}")
       	       (buffer-substring-no-properties (point-at-bol) (point-at-eol))))
      (forward-char) (org-babel-execute-maybe)
      (should (string=
                      (concat test-line " {{{results(=1=)}}}")
       	       (buffer-substring-no-properties (point-at-bol) (point-at-eol))))
      (re-search-forward "{{{")
     ;;(should-error (org-ctrl-c-ctrl-c))
      (backward-char 4) ;; last char of block body
      (org-babel-execute-maybe)
      (should (string=
                      (concat test-line " {{{results(=1=)}}}")
       	       (buffer-substring-no-properties (point-at-bol) (point-at-eol)))))
    ;; src_ follows space line 1...
    (let ((test-line " src_emacs-lisp{ 1 }"))
      (org-test-with-temp-text
	  test-line
	(should-error (org-ctrl-c-ctrl-c))
	(forward-char) (org-babel-execute-maybe)
	(should (string=
		 (concat test-line " {{{results(=1=)}}}")
		 (buffer-substring-no-properties (point-at-bol) (point-at-eol))))
	(re-search-forward "{ 1 ") (org-babel-execute-maybe)
	(should (string=
		 (concat test-line " {{{results(=1=)}}}")
		 (buffer-substring-no-properties (point-at-bol) (point-at-eol))))
	(forward-char 6)
	(should-error (org-ctrl-c-ctrl-c))))
    ;; Results on a subsequent line are replaced.
    (should
     (equal
      "src_emacs-lisp{(+ 1 2)}\n  {{{results(=3=)}}}"
      (org-test-with-temp-text "src_emacs-lisp{(+ 1 2)}\n  {{{results(=2=)}}}"
	(let ((org-babel-inline-result-wrap "=%s=")) (org-babel-execute-maybe))
	(buffer-string))))
    ;; Also handle results at the beginning of a line.
    (should
     (equal
      "src_emacs-lisp{(+ 1 2)}\n{{{results(=3=)}}}"
      (org-test-with-temp-text "src_emacs-lisp{(+ 1 2)}\n{{{results(=2=)}}}"
	(let ((org-babel-inline-result-wrap "=%s=")) (org-babel-execute-maybe))
	(buffer-string))))))

(ert-deftest test-ob/inline-src_blk-default-results-replace-line-2 ()
  ;; src_ at bol line 2...
  (let ((test-line " src_emacs-lisp{ \"x\" }")
	(org-babel-inline-result-wrap "=%s="))
    (org-test-with-temp-text
	(concat "\n" test-line)
      (should-error (org-ctrl-c-ctrl-c))
      (goto-char (point-min))
      (should-error (org-ctrl-c-ctrl-c))
      (forward-line)
      (should-error (org-ctrl-c-ctrl-c))
      (forward-char) (org-babel-execute-maybe)
      (should (string=
	       (concat test-line " {{{results(=x=)}}}")
	       (buffer-substring-no-properties
		(point-at-bol) (point-at-eol))))))
  (let ((test-line "Some text prior to block src_emacs-lisp{ \"y\" }")
	(org-babel-inline-result-wrap "=%s="))
    (org-test-with-temp-text
	test-line
      (goto-char (point-max))
      (insert (concat "\n" test-line " end"))
      (re-search-backward "src") (org-babel-execute-maybe)
      (should (string=
	       (concat test-line " {{{results(=y=)}}} end")
	       (buffer-substring-no-properties (point-at-bol) (point-at-eol))))
      (re-search-forward "\" ") (org-babel-execute-maybe)
      (should (string=
	       (concat test-line " {{{results(=y=)}}} end")
	       (buffer-substring-no-properties (point-at-bol) (point-at-eol))))
      (forward-char 3)
      (should-error (org-ctrl-c-ctrl-c)))))

(ert-deftest test-ob/inline-src_blk-manual-results-replace ()
  (let ((test-line " src_emacs-lisp[:results replace]{ \"x\" }")
	(org-babel-inline-result-wrap "=%s="))
    (org-test-with-temp-text
	(concat "\n" test-line)
      (should-error (org-ctrl-c-ctrl-c))
      (goto-char (point-max))
      (org-babel-execute-maybe)
      (beginning-of-line)
      (should-error (org-ctrl-c-ctrl-c))
      (forward-char) (org-babel-execute-maybe)
      (should (string=
              (concat test-line " {{{results(=x=)}}}")
      	       (buffer-substring-no-properties
		(point-at-bol) (point-at-eol))))))
  (let ((test-line (concat " Some text prior to block "
			   "src_emacs-lisp[:results replace]{ \"y\" }"))
	(org-babel-inline-result-wrap "=%s="))
    (org-test-with-temp-text test-line
      (goto-char (point-max))
      (insert (concat "\n" test-line " end"))
      (re-search-backward "src") (org-babel-execute-maybe)
      (should (string=
              (concat test-line " {{{results(=y=)}}} end")
    	       (buffer-substring-no-properties (point-at-bol) (point-at-eol))))
      (re-search-forward "\" ") (org-babel-execute-maybe)
      (should (string=
              (concat test-line " {{{results(=y=)}}} end")
    	       (buffer-substring-no-properties (point-at-bol) (point-at-eol))))
      (forward-char 3)
      (should-error (org-ctrl-c-ctrl-c)))))

(ert-deftest test-ob/inline-src_blk-results-silent ()
  (let ((test-line "src_emacs-lisp[ :results silent ]{ \"x\" }"))
    (org-test-with-temp-text test-line
      (org-babel-execute-maybe)
      (should (string= test-line
		       (buffer-substring-no-properties
			(point-at-bol) (point-at-eol))))))
  (let ((test-line (concat " Some text prior to block src_emacs-lisp"
			   "[ :results silent ]{ \"y\" }")))
    (org-test-with-temp-text
	test-line
      (goto-char (point-max))
      (insert (concat "\n" test-line " end"))
      (re-search-backward "src_") (org-babel-execute-maybe)
      (should (string= (concat test-line " end")
		       (buffer-substring-no-properties
			(point-at-bol) (point-at-eol))))
      (re-search-forward "\" ") (org-babel-execute-maybe)
      (should (string= (concat test-line " end")
		       (buffer-substring-no-properties
			(point-at-bol) (point-at-eol))))
      (forward-char 2)
      (should-error (org-ctrl-c-ctrl-c)))))

(ert-deftest test-ob/inline-src_blk-results-raw ()
  (let ((test-line "src_emacs-lisp[ :results raw ]{ \"x\" }"))
    (org-test-with-temp-text test-line
      (org-babel-execute-maybe)
      (should (string= (concat test-line " x")
		       (buffer-string)))))
  (let ((test-line (concat " Some text prior to block "
			   "src_emacs-lisp[ :results raw ]{ \"the\" }")))
    (org-test-with-temp-text (concat test-line " end")
      (re-search-forward "src_") (org-babel-execute-maybe)
      (should (string= (concat test-line " the end")
		       (buffer-substring-no-properties
			(point-at-bol) (point-at-eol))))
      (re-search-forward "\" ") (org-babel-execute-maybe)
      (should (string= (concat test-line " the the end")
		       (buffer-substring-no-properties
			(point-at-bol) (point-at-eol))))
      (forward-char 2)
      (should-error (org-ctrl-c-ctrl-c)))))

(ert-deftest test-ob/inline-src_blk-results-file ()
  (let ((test-line "src_emacs-lisp[ :results file ]{ \"~/test-file\"  }"))
    (org-test-with-temp-text
	test-line
      (org-babel-execute-maybe)
      (should (string= (concat test-line " {{{results([[file:~/test-file]])}}}")
		       (buffer-substring-no-properties
			(point-min) (point-max)))))))

(ert-deftest test-ob/inline-src_blk-results-scalar ()
  (let ((test-line "src_emacs-lisp[ :results scalar ]{ \"x\"  }")
	(org-babel-inline-result-wrap "=%s="))
    (org-test-with-temp-text
	test-line
      (org-babel-execute-maybe)
      (should (string= (concat test-line  " {{{results(=\"x\"=)}}}")
		       (buffer-substring-no-properties
			(point-min) (point-max)))))))

(ert-deftest test-ob/inline-src_blk-results-verbatim ()
  (let ((test-line "src_emacs-lisp[ :results verbatim ]{ \"x\"  }")
	(org-babel-inline-result-wrap "=%s="))
    (org-test-with-temp-text
	test-line
      (org-babel-execute-maybe)
      (should (string= (concat test-line " {{{results(=\"x\"=)}}}")
		       (buffer-substring-no-properties
			(point-min) (point-max)))))))

(ert-deftest test-ob/inline-src_blk-wrap ()
  (let ((org-babel-inline-result-wrap "=%s="))
    ;; Export: use export snippet.
    (should
     (string-match-p
      "@@foo:1@@"
      (org-test-with-temp-text "src_emacs-lisp[:wrap export foo]{1}"
	(org-babel-execute-maybe)
	(buffer-string))))
    (should
     (string-match-p
      "src_foo{1}"
      (org-test-with-temp-text "src_emacs-lisp[:wrap src foo]{1}"
	(org-babel-execute-maybe)
	(buffer-string))))
    (should
     (string-match-p
      "src_foo\\[parameter\\]{1}"
      (org-test-with-temp-text "src_emacs-lisp[:wrap src foo parameter]{1}"
	(org-babel-execute-maybe)
	(buffer-string))))
    (should
     (string-match-p
      "=1="
      (org-test-with-temp-text "src_emacs-lisp[:wrap example]{1}"
	(org-babel-execute-maybe)
	(buffer-string))))
    ;; Anything else is ignored.
    (should
     (string-match-p
      "{{{results(1)}}}"
      (org-test-with-temp-text "src_emacs-lisp[:wrap foo]{1}"
	(org-babel-execute-maybe)
	(buffer-string))))
    (should
     (string-match-p
      "{{{results(a\\\\,b)}}}"
      (org-test-with-temp-text "src_emacs-lisp[:wrap foo]{\"a,b\"}"
	(org-babel-execute-maybe)
	(buffer-string))))))

(ert-deftest test-ob/combining-scalar-and-raw-result-types ()
  (org-test-with-temp-text-in-file "

#+begin_src sh :results scalar
echo \"[[file:./cv.cls]]\"
#+end_src

#+name:
: [[file:./cv.cls]]

#+begin_src sh :results raw scalar
   echo \"[[file:./cv.cls]]\"
#+end_src
"
    (cl-flet ((next-result ()
			   (org-babel-next-src-block)
			   (org-babel-execute-src-block)
			   (goto-char (org-babel-where-is-src-block-result))
			   (forward-line 1)))
      (goto-char (point-min))
      (next-result)
      (should (eq (org-element-type (org-element-at-point)) 'fixed-width))
      (next-result)
      (should-not
       (eq (org-element-type (org-element-at-point)) 'fixed-width)))))

(ert-deftest test-ob/no-defaut-value-for-var ()
  "Test that the absence of a default value for a variable DOES THROW
  a proper error."
  (org-test-at-id "f2df5ba6-75fa-4e6b-8441-65ed84963627"
    (org-babel-next-src-block)
    (let ((err
	   (should-error (org-babel-execute-src-block) :type 'error)))
      (should
       (equal
	'(error
	  "Variable \"x\" must be assigned a default value")
	err)))))

(ert-deftest test-ob/just-one-results-block ()
  "Test that evaluating two times the same code block does not result in a
duplicate results block."
  (org-test-with-temp-text "#+begin_src sh :results output\necho Hello\n#+end_src\n"
    (org-babel-execute-src-block)
    (org-babel-execute-src-block)     ; second code block execution
    (should (search-forward "Hello")) ; the string inside the source code block
    (should (search-forward "Hello")) ; the same string in the results block
    (should-error (search-forward "Hello"))))

(ert-deftest test-ob/nested-code-block ()
  "Test nested code blocks inside code blocks don't cause problems."
  (should
   (string= "#+begin_src emacs-lisp\n  'foo\n#+end_src"
	    (org-test-with-temp-text "#+begin_src org :results silent
  ,#+begin_src emacs-lisp
    'foo
  ,#+end_src
#+end_src"
	      (let ((org-edit-src-content-indentation 2)
		    (org-src-preserve-indentation nil))
		(org-babel-execute-src-block))))))

(ert-deftest test-ob/partial-nested-code-block ()
  "Test nested code blocks inside code blocks don't cause problems."
  (org-test-with-temp-text "#+begin_src org :results silent
  ,#+begin_src emacs-lisp
#+end_src"
    (should (string= "#+begin_src emacs-lisp" (org-babel-execute-src-block)))))

(ert-deftest test-ob/does-not-replace-a-block-with-the-results ()
  (org-test-with-temp-text "#+NAME: foo
#+BEGIN_SRC emacs-lisp
 'foo
#+END_SRC\n"
    (org-babel-next-src-block 1)
    (should (eq 'foo (org-babel-execute-src-block)))
    (goto-char (point-min))
    (org-babel-next-src-block 1)
    (should (looking-at org-babel-src-block-regexp))))

(ert-deftest test-ob/replace-special-block-result ()
  (should-error
   (org-test-with-temp-text "
#+begin_src emacs-lisp :wrap special<point>
'foo
#+end_src"
     (org-babel-execute-src-block)
     (org-babel-execute-src-block)
     (buffer-string)
     (search-forward "#+begin_special" nil nil 2))))

(ert-deftest test-ob/catches-all-references ()
  (org-test-with-temp-text "
#+NAME: literal-example
#+BEGIN_EXAMPLE
A literal example
on two lines
#+END_EXAMPLE

#+NAME: read-literal-example
#+BEGIN_SRC emacs-lisp :var x=literal-example
  (cl-concatenate 'string x \" for me.\")
#+END_SRC"
    (org-babel-next-src-block 1)
    (should (string= (org-babel-execute-src-block)
		     "A literal example\non two lines\n for me."))))

(ert-deftest test-ob/ignore-reference-in-commented-headings ()
  (should
   (= 2
      (org-test-with-temp-text
	  "
* COMMENT H1
#+NAME: n
: 1

* H2
#+NAME: n
: 2

* Code

<point>#+BEGIN_SRC emacs-lisp :var x=n
x
#+END_SRC"
	(org-babel-execute-src-block)))))

(ert-deftest test-ob/do-not-resolve-to-partial-names-data ()
  (org-test-with-temp-text "
#+name: base_plus
| 1 |
| 2 |

#+name: base
| 3 |
| 4 |

#+begin_src emacs-lisp :var x=base
  x
#+end_src"
    (org-babel-next-src-block 1)
    (should (equal (org-babel-execute-src-block) '((3) (4))))))

(ert-deftest test-ob/do-not-resolve-to-partial-names-code ()
  (org-test-with-temp-text "
#+name: base_plus
#+begin_src emacs-lisp
  'bar
#+end_src

#+name: base
#+begin_src emacs-lisp
  'foo
#+end_src

#+begin_src emacs-lisp :var x=base
  x
#+end_src"
    (org-babel-next-src-block 3)
    (should (equal (org-babel-execute-src-block) "foo"))))

(ert-deftest test-ob/allow-spaces-around-=-in-var-specs ()
  (org-test-with-temp-text "#+begin_src emacs-lisp :var a = 1 b = 2 c= 3 d =4
  (+ a b c d)
#+end_src
"
    (should (= 10 (org-babel-execute-src-block)))))

(ert-deftest test-ob/org-babel-update-intermediate ()
  (org-test-with-temp-text "#+name: foo
#+begin_src emacs-lisp
  2
#+end_src

#+results: foo
: 4

#+begin_src emacs-lisp :var it=foo
  (+ it 1)
#+end_src"
    (let ((org-babel-update-intermediate nil))
      (goto-char (point-min))
      (org-babel-next-src-block 2)
      (should (= 3 (org-babel-execute-src-block)))
      (goto-char (point-min))
      (forward-line 6)
      (should (looking-at ": 4")))
    (let ((org-babel-update-intermediate t))
      (goto-char (point-min))
      (org-babel-next-src-block 2)
      (should (= 3 (org-babel-execute-src-block)))
      (goto-char (point-min))
      (forward-line 6)
      (should (looking-at ": 2")))))

(ert-deftest test-ob/eval-header-argument ()
  (defvar test-ob--foo)
  (cl-flet ((check-eval (eval runp)
			(org-test-with-temp-text (format "#+begin_src emacs-lisp :eval %s
  (setq test-ob--foo :evald)
#+end_src" eval)
			  (let ((test-ob--foo :not-run))
			    (if runp
				(progn (should (org-babel-execute-src-block))
				       (should (eq test-ob--foo :evald)))
			      (progn (should-not (org-babel-execute-src-block))
				     (should-not (eq test-ob--foo :evald))))))))
    (check-eval "never" nil)
    (check-eval "no" nil)
    (check-eval "never-export" t)
    (check-eval "no-export" t)
    (let ((org-babel-exp-reference-buffer (current-buffer)))
      (check-eval "never" nil)
      (check-eval "no" nil)
      (check-eval "never-export" nil)
      (check-eval "no-export" nil))))

(ert-deftest test-ob/noweb-expansion ()
  ;; Standard test.
  (should
   (string=
    "bar"
    (org-test-with-temp-text "#+begin_src sh :results output :tangle yes
  <<foo>>
#+end_src

#+name: foo
#+begin_src sh
  bar
#+end_src"
      (org-babel-expand-noweb-references))))
  ;; Handle :noweb-sep.
  (should
   (string=
    "barbaz"
    (org-test-with-temp-text "#+begin_src sh :results output :tangle yes
  <<foo>>
#+end_src

#+begin_src sh :noweb-ref foo :noweb-sep \"\"
  bar
#+end_src

#+begin_src sh :noweb-ref foo :noweb-sep \"\"
  baz
#+end_src"
      (org-babel-expand-noweb-references))))
  ;; :noweb-ref is extracted from definition, not point of call.
  (should
   (string=
    "(+ 1 1)"
    (org-test-with-temp-text
	"
* Call
:PROPERTIES:
:header-args: :noweb-ref bar
:END:

<point>#+begin_src emacs-lisp :results output :tangle yes
  <<foo>>
#+end_src

* Evaluation
:PROPERTIES:
:header-args: :noweb-ref foo
:END:

#+begin_src sh :noweb-sep \"\"
  (+ 1 1)
#+end_src"
      (org-babel-expand-noweb-references))))
  ;; Handle recursive expansion.
  (should
   (equal "baz"
	  (org-test-with-temp-text "
#+begin_src emacs-lisp :noweb yes<point>
  <<foo>>
#+end_src

#+name: foo
#+begin_src emacs-lisp :noweb yes
  <<bar>>
#+end_src

#+name: bar
#+begin_src emacs-lisp
  baz
#+end_src"
	    (org-babel-expand-noweb-references))))
  ;; During recursive expansion, obey to `:noweb' property.
  (should
   (equal "<<bar>>"
	  (org-test-with-temp-text "
#+begin_src emacs-lisp :noweb yes<point>
  <<foo>>
#+end_src

#+name: foo
#+begin_src emacs-lisp :noweb no
  <<bar>>
#+end_src

#+name: bar
#+begin_src emacs-lisp
  baz
#+end_src"
	    (org-babel-expand-noweb-references))))
  ;; Respect COMMENT headlines
  (should
   (equal "C"
	  (org-test-with-temp-text "
#+begin_src emacs-lisp :noweb yes<point>
  <<foo>>
#+end_src

* COMMENT A
#+name: foo
#+begin_src emacs-lisp
  A
#+end_src

* COMMENT B
#+begin_src emacs-lisp :noweb-ref foo
  B
#+end_src

* C
#+begin_src emacs-lisp :noweb-ref foo
  C
#+end_src"
	    (org-babel-expand-noweb-references))))
  ;; Preserve case when replacing Noweb reference.
  (should
   (equal "(ignore)"
	  (org-test-with-temp-text "
#+begin_src emacs-lisp :noweb-ref AA
\(ignore)
#+end_src

#+begin_src emacs-lisp :noweb yes<point>
<<AA>>
#+end_src"
	    (org-babel-expand-noweb-references))))
  ;; Test :noweb-ref expansion.
  (should
   (equal "(message \"!! %s\" \"Running confpkg-test-setup\")

(message \"- Ran `%s'\" 'confpkg-test-strip-package-statements)

(message \"!! %s\" \"Still running confpkg-test-setup\")

(message \"- Ran elisp blocks in `%s'\" 'confpkg-test-dependency-analysis)

(message \"!! %s\" \"End of confpkg-test-setup\")"
          (org-test-with-temp-text "
* Setup

#+name: confpkg-test-setup
#+begin_src emacs-lisp :results silent :noweb no-export
(message \"!! %s\" \"Running confpkg-test-setup\")

<<confpkg-test-strip-package-statements>>

(message \"!! %s\" \"Still running confpkg-test-setup\")

<<confpkg-test-dependency-analysis>>

(message \"!! %s\" \"End of confpkg-test-setup\")
#+end_src

#+call: confpkg-test-setup[:results none]()

* Identify cross-package dependencies

#+begin_src emacs-lisp :noweb-ref confpkg-test-dependency-analysis
(message \"- Ran elisp blocks in `%s'\" 'confpkg-test-dependency-analysis)
#+end_src

* Commenting out ~package!~ statements

#+name: confpkg-test-strip-package-statements
#+begin_src emacs-lisp
(message \"- Ran `%s'\" 'confpkg-test-strip-package-statements)
#+end_src
"
            (goto-char (point-min))
            (search-forward "begin_src")
            (org-babel-expand-noweb-references)))))

(ert-deftest test-ob/splitting-variable-lists-in-references ()
  (org-test-with-temp-text ""
    (should (= 1 (length (org-babel-ref-split-args
			  "a=\"this, no work\""))))
    (should (= 2 (length (org-babel-ref-split-args
			  "a=\"this, no work\", b=1"))))))

(ert-deftest test-ob/balanced-split ()
  "Test `org-babel-balanced-split' specifications."
  (should (equal
	   '(":a 1" "b [2 3]" "c (4 :d (5 6))")
	   (org-babel-balanced-split ":a 1 :b [2 3] :c (4 :d (5 6))"
				     '((32 9) . 58))))
  ;; Handle un-balanced parens.
  (should
   (equal '(":foo ((6)" "bar 1")
	  (org-babel-balanced-split ":foo ((6) :bar 1" '((32 9) . 58))))
  (should
   (equal '(":foo \"(foo\"" "bar 2")
	  (org-babel-balanced-split ":foo \"(foo\" :bar 2" '((32 9) . 58))))
  ;; Handle un-balanced quotes.
  (should
   (equal '(":foo \"1" "bar 3")
	  (org-babel-balanced-split ":foo \"1 :bar 3" '((32 9) . 58))))
  ;; Handle empty string.
  (should
   (equal '(":foo \"\"")
	  (org-babel-balanced-split ":foo \"\"" '((32 9) . 58))))
  ;; Handle control characters within double quotes.
  (should
   (equal '(":foo \"\\n\"")
	  (org-babel-balanced-split ":foo \"\\n\"" '((32 9) . 58)))))

(ert-deftest test-ob/commented-last-block-line-no-var ()
  (org-test-with-temp-text-in-file "
#+begin_src emacs-lisp
;;
#+end_src"
    (org-babel-next-src-block)
    (org-babel-execute-maybe)
    (should (re-search-forward "\\#\\+results:" nil t))
    (forward-line)
    (should
     (string=
      ""
      (buffer-substring-no-properties (point-at-bol) (point-at-eol)))))
  (org-test-with-temp-text-in-file "
#+begin_src emacs-lisp
\"some text\";;
#+end_src"
    (org-babel-next-src-block)
    (org-babel-execute-maybe)
    (should (re-search-forward "\\#\\+results:" nil t))
    (forward-line)
    (should
     (string=
      ": some text"
      (buffer-substring-no-properties (point-at-bol) (point-at-eol))))))

(ert-deftest test-ob/commented-last-block-line-with-var ()
  (org-test-with-temp-text-in-file "
#+begin_src emacs-lisp :var a=1
;;
#+end_src"
    (org-babel-next-src-block)
    (org-babel-execute-maybe)
    (re-search-forward "\\#\\+results:" nil t)
    (forward-line)
    (should (string=
	     ""
	     (buffer-substring-no-properties (point-at-bol) (point-at-eol)))))
  (org-test-with-temp-text-in-file "
#+begin_src emacs-lisp :var a=2
2;;
#+end_src"
    (org-babel-next-src-block)
    (org-babel-execute-maybe)
    (re-search-forward "\\#\\+results:" nil t)
    (forward-line)
    (should (string=
	     ": 2"
	     (buffer-substring-no-properties (point-at-bol) (point-at-eol))))))

(ert-deftest test-ob/org-babel-insert-result ()
  "Test `org-babel-insert-result' specifications."
  ;; Do not error when output is an improper list.
  (should
   (org-test-with-temp-text
       "
<point>#+BEGIN_SRC emacs-lisp
'((1 . nil) (2 . 3))
#+END_SRC
"
     (org-babel-execute-maybe) t))
  ;; Escape headlines when producing an example block.
  (should
   (string-match-p
    ",\\* Not an headline"
    (org-test-with-temp-text
	"
<point>#+BEGIN_SRC emacs-lisp
\"* Not an headline\"
#+END_SRC
"
      (let ((org-babel-min-lines-for-block-output 1)) (org-babel-execute-maybe))
      (buffer-string))))
  ;; Escape special syntax in example blocks.
  (should
   (string-match-p
    ",#\\+END_SRC"
    (org-test-with-temp-text
	"
<point>#+BEGIN_SRC emacs-lisp
\"#+END_SRC\"
#+END_SRC
"
      (let ((org-babel-min-lines-for-block-output 1)) (org-babel-execute-maybe))
      (buffer-string))))
  ;; No escaping is done with other blocks or raw type.
  (should-not
   (string-match-p
    ",\\* Not an headline"
    (org-test-with-temp-text
	"
<point>#+BEGIN_SRC emacs-lisp
\"* Not an headline\"
#+END_SRC
"
      (let ((org-babel-min-lines-for-block-output 10))
	(org-babel-execute-maybe))
      (buffer-string))))
  (should-not
   (string-match-p
    ",\\* Not an headline"
    (org-test-with-temp-text
	"
<point>#+BEGIN_SRC emacs-lisp :results raw
\"* Not an headline\"
#+END_SRC
"
      (org-babel-execute-maybe)
      (buffer-string))))
  (should-not
   (string-match-p
    ",\\* Not an headline"
    (org-test-with-temp-text
	"
<point>#+BEGIN_SRC emacs-lisp :results drawer
\"* Not an headline\"
#+END_SRC
"
      (org-babel-execute-maybe)
      (buffer-string)))))

(ert-deftest test-ob/remove-inline-result ()
  "Test `org-babel-remove-inline-result' honors whitespace."
  (let*
      ((inline-sb "src_emacs-lisp{(+ 1 2)}")
       (inline-res " {{{results(=3=)}}}")
       (inline-sb-dot (concat inline-sb "."))
       (inline-sb-res-dot (concat inline-sb inline-res ".")))
    (org-test-with-temp-text
	;; Insert inline_src_block followed by dot.
	inline-sb-dot
      ;; Insert result before dot.
      (org-babel-execute-maybe)
      (should (string= inline-sb-res-dot
		       (buffer-substring-no-properties
			(point-at-bol) (point-at-eol))))
      ;; Delete whitespace and result.
      (org-babel-remove-inline-result)
      (should (string= inline-sb-dot
		       (buffer-substring-no-properties
			(point-at-bol) (point-at-eol))))
      ;; Add whitespace and result before dot.
      (search-forward inline-sb)
      (insert "     " inline-res)
      (goto-char (point-at-bol))
      ;; Remove whitespace and result.
      (org-babel-remove-inline-result)
      (should (string= inline-sb-dot
		       (buffer-substring-no-properties
			(point-at-bol) (point-at-eol))))
      ;; Add whitespace before dot.
      (search-forward inline-sb)
      (insert "     ")
      (goto-char (point-at-bol))
      ;; Add result before whitespace.
      (org-babel-execute-maybe)
      ;; Remove result - leave trailing whitespace and dot.
      (org-babel-remove-inline-result)
      (should (string= (concat inline-sb "     .")
		       (buffer-substring-no-properties
			(point-at-bol) (point-at-eol)))))))

(ert-deftest test-ob/org-babel-remove-result--results-default ()
  "Test `org-babel-remove-result' with default :results."
  (mapcar (lambda (language)
	    (test-ob-verify-result-and-removed-result
	     "\n"
	     (concat
	      "* org-babel-remove-result
#+begin_src " language "
#+end_src

* next heading")))
	  '("emacs-lisp")))

(ert-deftest test-ob/org-babel-results-indented-wrap ()
  "Ensure that wrapped results are inserted correction when indented.
If not inserted correctly then the second evaluation will fail
trying to find the :END: marker."
  (org-test-with-temp-text
      "- indented
  #+begin_src sh :results file wrap
    echo test.txt
  #+end_src"
    (org-babel-next-src-block 1)
    (org-babel-execute-src-block)
    (org-babel-execute-src-block)))

(ert-deftest test-ob/org-babel-results-indented-list ()
  "Test that :results value list indents multi-line items correctly."
  (should
   (string= "- Foo1
  Bar1
- Foo2

  Bar2
"
            (org-test-with-temp-text
                "#+begin_src emacs-lisp :results value list
'(\"Foo1
Bar1\"
  \"Foo2

Bar2\")
#+end_src"
              (org-babel-execute-src-block)
              (org-forward-element)
              (org-narrow-to-element)
              (delete-trailing-whitespace)
              (buffer-string)))))

(ert-deftest test-ob/file-desc-header-argument ()
  "Test that the :file-desc header argument is used."
  (org-test-with-temp-text "#+begin_src emacs-lisp :results file :file-desc bar
  \"foo\"
#+end_src

#+begin_src emacs-lisp :results file :file-desc
  \"foo\"
#+end_src"
    (org-babel-execute-src-block)
    (org-babel-next-src-block 1)
    (org-babel-execute-src-block)
    (goto-char (point-min))
    (should (search-forward "[[file:foo][bar]]" nil t))
    (should (search-forward "[[file:foo][foo]]" nil t)))
  (should (string-match-p
           (regexp-quote "[[file:foo]]")
           (org-test-with-temp-text "
#+begin_src emacs-lisp :results file :file-desc []
  \"foo\"
#+end_src"
             (org-babel-next-src-block)
             (org-babel-execute-src-block)
             (buffer-substring-no-properties (point-min) (point-max)))))
  (should (string-match-p
           (regexp-quote "[[file:foo][foo]]")
           (org-test-with-temp-text "
#+begin_src emacs-lisp :results file :file-desc
  \"foo\"
#+end_src"
             (org-babel-next-src-block)
             (org-babel-execute-src-block)
             (buffer-substring-no-properties (point-min) (point-max))))))

(ert-deftest test-ob/result-file-link-type-header-argument ()
  "Ensure that the result is a link to a file.
The file is just a link to `:file' value.  Inhibit non-empty
result write to `:file' value."
  (org-test-with-temp-text "
<point>#+begin_src shell :results value file link :file \"/tmp/test.txt\"
echo \"hello\" > /tmp/test.txt
echo \"test\"
#+end_src"
    (org-babel-execute-src-block)
    (should (search-forward "[[file:/tmp/test.txt]]" nil t))
    (should (with-temp-buffer
	      (insert-file-contents "/tmp/test.txt")
	      (string= "hello\n" (buffer-string)))))
  ;; Without "link" output type, the result is not a file.
  (should-not
   (org-test-with-temp-text "
<point>#+begin_src shell :results value link :file \"/tmp/test.txt\"
echo \"hello\" > /tmp/test.txt
echo \"test\"
#+end_src"
     (org-babel-execute-src-block)
     (search-forward "[[file:/tmp/test.txt]]" nil t))))

(ert-deftest test-ob/result-graphics-link-type-header-argument ()
  "Ensure that the result is a link to a file.
The file is just a link to `:file' value.  Inhibit non-empty
result write to `:file' value."
  (org-test-with-temp-text "
<point>#+begin_src shell :results value file graphics :file \"/tmp/test.txt\"
echo \"hello\" > /tmp/test.txt
echo \"test\"
#+end_src"
    (org-babel-execute-src-block)
    (should (search-forward "[[file:/tmp/test.txt]]" nil nil))
    (should (with-temp-buffer
	      (insert-file-contents "/tmp/test.txt")
	      (string= "hello\n" (buffer-string)))))
  ;; Without "link" output type, the result is not a file.
  (should-not
   (org-test-with-temp-text "
<point>#+begin_src shell :results value graphics :file \"/tmp/test.txt\"
echo \"hello\" > /tmp/test.txt
echo \"test\"
#+end_src"
     (org-babel-execute-src-block)
     (search-forward "[[file:/tmp/test.txt]]" nil t))))

(ert-deftest test-ob/inline-src_blk-preceded-punct-preceded-by-point ()
  (let ((test-line ".src_emacs-lisp[ :results verbatim ]{ \"x\"  }")
	(org-babel-inline-result-wrap "=%s="))
    (org-test-with-temp-text
	test-line
      (forward-char 1)
      (org-babel-execute-maybe)
      (should (re-search-forward "=\"x\"=" nil t))
      (forward-line))))

(defun test-ob-verify-result-and-removed-result (result buffer-text)
  "Test helper function to test `org-babel-remove-result'.
A temp buffer is populated with BUFFER-TEXT, the first block is executed,
and the result of execution is verified against RESULT.

The block is actually executed /twice/ to ensure result
replacement happens correctly."
  (org-test-with-temp-text
      buffer-text
    (org-babel-next-src-block) (org-babel-execute-maybe) (org-babel-execute-maybe)
    (should (re-search-forward "\\#\\+results:" nil t))
    (forward-line)
    (should (string= result
		     (buffer-substring-no-properties
		      (point-at-bol)
		      (- (point-max) 16))))
    (org-babel-previous-src-block) (org-babel-remove-result)
    (should (string= buffer-text
		     (buffer-substring-no-properties
		      (point-min) (point-max))))))

(ert-deftest test-ob/org-babel-remove-result--results-list ()
  "Test `org-babel-remove-result' with :results list."
  (test-ob-verify-result-and-removed-result
   "- 1
- 2
- 3"

   "* org-babel-remove-result
#+begin_src emacs-lisp :results list
'(1 2 3)
#+end_src

* next heading"))

(ert-deftest test-ob/org-babel-remove-result--results-wrap ()
  "Test `org-babel-remove-result' with :results wrap."
  (test-ob-verify-result-and-removed-result
   ":results:
hello there
:end:"

   "* org-babel-remove-result

#+begin_src emacs-lisp :results wrap
\"hello there\"
#+end_src

* next heading"))

(ert-deftest test-ob/org-babel-remove-result--results-org ()
  "Test `org-babel-remove-result' with :results org."
  (test-ob-verify-result-and-removed-result
   "#+begin_src org
,* heading
,** subheading
content
#+end_src"

   "* org-babel-remove-result
#+begin_src emacs-lisp :results org
\"* heading
,** subheading
content\"
#+end_src

* next heading"))

(ert-deftest test-ob/org-babel-remove-result--results-html ()
  "Test `org-babel-remove-result' with :results html."
  (test-ob-verify-result-and-removed-result
   "#+begin_export html
<head><body></body></head>
#+end_export"

   "* org-babel-remove-result
#+begin_src emacs-lisp :results html
\"<head><body></body></head>\"
#+end_src

* next heading"))

(ert-deftest test-ob/org-babel-remove-result--results-latex ()
  "Test `org-babel-remove-result' with :results latex."
  (test-ob-verify-result-and-removed-result
   "#+begin_export latex
Line 1
Line 2
Line 3
#+end_export"

   "* org-babel-remove-result
#+begin_src emacs-lisp :results latex
\"Line 1
Line 2
Line 3\"
#+end_src

* next heading"))

(ert-deftest test-ob/org-babel-remove-result--results-code ()
  "Test `org-babel-remove-result' with :results code."

  (test-ob-verify-result-and-removed-result
   "#+begin_src emacs-lisp
\"I am working!\"
#+end_src"

   "* org-babel-remove-result
#+begin_src emacs-lisp :results code
(message \"I am working!\")
#+end_src

* next heading"))

(ert-deftest test-ob/org-babel-remove-result--results-pp ()
  "Test `org-babel-remove-result' with :results pp."
  (test-ob-verify-result-and-removed-result
   ": \"I /am/ working!\""

   "* org-babel-remove-result
#+begin_src emacs-lisp :results pp
\"I /am/ working!\")
#+end_src

* next heading"))

(ert-deftest test-ob/org-babel-remove-result--no-blank-line ()
  "Test `org-babel-remove-result' without blank line between code and results."
  (should
   (equal "
#+begin_src emacs-lisp
  (+ 1 1)
#+end_src
#+results:
: 2
* next heading"
	  (org-test-with-temp-text
	      "
<point>#+begin_src emacs-lisp
  (+ 1 1)
#+end_src
#+results:
: 2
* next heading"
	    (org-babel-execute-maybe)
	    (buffer-string)))))

(ert-deftest test-ob/results-do-not-replace-code-blocks ()
  (org-test-with-temp-text "Block two has a space after the name.

  #+name: foo
  #+begin_src emacs-lisp
    1
  #+end_src

#+name: foo
#+begin_src emacs-lisp
  2
#+end_src

#+name: foo
#+begin_src emacs-lisp
  3
#+end_src

#+RESULTS: foo
: foo
"
    (dolist (num '(1 2 3))
      ;; execute the block
      (goto-char (point-min))
      (org-babel-next-src-block num) (org-babel-execute-src-block)
      ;; check the results
      (goto-char (point-max))
      (move-beginning-of-line 0)
      (should (looking-at (format ": %d" num))))))

(ert-deftest test-ob/blocks-with-spaces ()
  "Test expansion of blocks followed by blank lines."
  ;; Preserve number of blank lines after block.
  (should
   (equal "#+BEGIN_SRC emacs-lisp
\(+ 1 2)
#+END_SRC

#+RESULTS:
: 3\n\n\n"
	  (org-test-with-temp-text "#+BEGIN_SRC emacs-lisp
\(+ 1 2)
#+END_SRC\n\n\n"
	    (let ((org-babel-results-keyword "RESULTS"))
	      (org-babel-execute-src-block))
	    (buffer-string))))
  ;; Do not add spurious blank lines after results.
  (should
   (equal
    "
- item 1

  #+begin_src emacs-lisp
  0
  #+end_src

  #+RESULTS:
  : 0

- item 2"
    (org-test-with-temp-text "
- item 1

  #+begin_src emacs-lisp<point>
  0
  #+end_src

- item 2"
      (org-babel-execute-src-block)
      (buffer-string))))
  (should
   (equal
    "
- item 1

  #+begin_src emacs-lisp
  1
  #+end_src

  #+RESULTS:
  : 1

- item 2"
    (org-test-with-temp-text "
- item 1

  #+begin_src emacs-lisp<point>
  1
  #+end_src

  #+RESULTS:
  : 1

- item 2"
      (org-babel-execute-src-block)
      (buffer-string)))))

(ert-deftest test-ob/results-in-narrowed-buffer ()
  "Test block execution in a narrowed buffer."
  ;; If results don't exist, they should be inserted in visible part
  ;; of the buffer.
  (should
   (equal
    "#+BEGIN_SRC emacs-lisp\n(+ 1 2)\n#+END_SRC\n\n#+RESULTS:\n: 3"
    (org-test-with-temp-text
	"#+BEGIN_SRC emacs-lisp\n(+ 1 2)\n#+END_SRC\n\nParagraph"
      (narrow-to-region (point) (save-excursion (forward-line 3) (point)))
      (let ((org-babel-results-keyword "RESULTS"))
	(org-babel-execute-src-block))
      (org-trim (buffer-string)))))
  (should
   (equal
    "#+NAME: test\n#+BEGIN_SRC emacs-lisp\n(+ 1 2)\n#+END_SRC\n\n#+RESULTS: test\n: 3"
    (org-test-with-temp-text
	"#+NAME: test\n#+BEGIN_SRC emacs-lisp\n(+ 1 2)\n#+END_SRC\n\nParagraph"
      (narrow-to-region (point) (save-excursion (forward-line 4) (point)))
      (let ((org-babel-results-keyword "RESULTS"))
	(org-babel-execute-src-block))
      (org-trim (buffer-string)))))
  ;; Results in visible part of buffer, should be updated here.
  (should
   (equal
    "#+NAME: test
#+BEGIN_SRC emacs-lisp
\(+ 1 2)
#+END_SRC

#+RESULTS: test
: 3"
    (org-test-with-temp-text
	"#+NAME: test
#+BEGIN_SRC emacs-lisp
\(+ 1 2)
#+END_SRC

#+RESULTS: test
: 4
<point>
Paragraph"
      (narrow-to-region (point-min) (point))
      (goto-char (point-min))
      (let ((org-babel-results-keyword "RESULTS"))
	(org-babel-execute-src-block))
      (org-trim (buffer-string)))))
  ;; Results in invisible part of buffer, should be updated there.
  (org-test-with-temp-text
      "#+NAME: test
#+BEGIN_SRC emacs-lisp
\(+ 1 2)
#+END_SRC

#+RESULTS: test
: 4

Paragraph"
    (narrow-to-region (point) (save-excursion (forward-line 4) (point)))
    (let ((org-babel-results-keyword "RESULTS"))
      (org-babel-execute-src-block))
    (should-not (re-search-forward "^#\\+RESULTS:" nil t))
    (widen)
    (should (re-search-forward "^: 3" nil t))))

(ert-deftest test-ob/specific-colnames ()
  "Test passing specific column names."
  (should
   (equal "#+name: input-table
| id | var1 |
|----+------|
|  1 | bar  |
|  2 | baz  |

#+begin_src sh :var data=input-table :results table :exports results :colnames '(Rev Author)
echo \"$data\"
#+end_src

#+RESULTS:
| Rev | Author |
|-----+--------|
|   1 | bar    |
|   2 | baz    |
"
	  (org-test-with-temp-text
	      "#+name: input-table
| id | var1 |
|----+------|
|  1 | bar  |
|  2 | baz  |

#+begin_src sh :var data=input-table :results table :exports results :colnames '(Rev Author)
echo \"$data\"
#+end_src
"
	    ;; we should find a code block
	    (should (re-search-forward org-babel-src-block-regexp nil t))
	    (goto-char (match-beginning 0))
	    ;; now that we've located the code block, it may be evaluated
	    (let ((org-babel-results-keyword "RESULTS"))
	      (org-babel-execute-src-block))
	    (buffer-string)))))

(ert-deftest test-ob/location-of-header-arg-eval ()
  "Test location of header argument evaluation."
  (org-test-with-temp-text "
#+name: top-block
#+begin_src emacs-lisp :var pt=(point)
  pt
#+end_src

#+name: bottom-block
#+begin_src emacs-lisp :var pt=top-block()
  pt
#+end_src
"
    ;; the value of the second block should be greater than the first
    (should
     (< (progn (re-search-forward org-babel-src-block-regexp nil t)
	       (goto-char (match-beginning 0))
	       (prog1 (save-match-data (org-babel-execute-src-block))
		 (goto-char (match-end 0))))
	(progn (re-search-forward org-babel-src-block-regexp nil t)
	       (goto-char (match-beginning 0))
	       (org-babel-execute-src-block))))))

(ert-deftest test-ob/preserve-results-indentation ()
  "Preserve indentation when executing a source block."
  (should
   (equal
    '(2 2)
    (org-test-with-temp-text "  #+begin_src emacs-lisp\n(+ 1 1)\n  #+end_src"
      (org-babel-execute-src-block)
      (let ((case-fold-search t)) (search-forward "RESULTS"))
      (list (current-indentation)
	    (progn (forward-line) (current-indentation))))))
  (should
   (equal
    '(2 2)
    (org-test-with-temp-text
	"  #+name: block\n  #+begin_src emacs-lisp\n(+ 1 1)\n  #+end_src"
      (org-babel-execute-src-block)
      (let ((case-fold-search t)) (search-forward "RESULTS"))
      (list (current-indentation)
	    (progn (forward-line) (current-indentation))))))
  ;; Don't get fooled by TAB-based indentation.
  (should
   (equal
    '(6 6)
    (org-test-with-temp-text
	"\t  #+begin_src emacs-lisp\n\t  (+ 1 1)\n\t  #+end_src"
      (setq tab-width 4)
      (org-babel-execute-src-block)
      (let ((case-fold-search t)) (search-forward "RESULTS"))
      (list (current-indentation)
	    (progn (forward-line) (current-indentation))))))
  ;; Properly indent examplified blocks.
  (should
   (equal
    "   #+begin_example
   0
   1
   2
   3
   4
   5
   6
   7
   8
   9
   #+end_example
"
    (org-test-with-temp-text
	"   #+begin_src emacs-lisp :results output
   (dotimes (i 10) (princ i) (princ \"\\n\"))
   #+end_src"
      (org-babel-execute-src-block)
      (search-forward "begin_example")
      (downcase
       (buffer-substring-no-properties (line-beginning-position)
				       (point-max))))))
  ;; Properly indent "org" blocks.
  (should
   (equal
    "   #+begin_src org
   0
   1
   2
   3
   4
   5
   6
   7
   8
   9
   #+end_src
"
    (org-test-with-temp-text
	"   #+begin_src emacs-lisp :results output org
   (dotimes (i 10) (princ i) (princ \"\\n\"))
   #+end_src"
      (org-babel-execute-src-block)
      (search-forward "begin_src org")
      (downcase
       (buffer-substring-no-properties (line-beginning-position)
				       (point-max)))))))

(ert-deftest test-ob/preserve-comma-escape ()
  "Preserve comma escapes when inserting results."
  (should
   (equal
    "#+begin_example
line 1
,* headline 2
,* headline 3
,* headline 4
,* headline 5
#+end_example
"
    (org-test-with-temp-text "#+begin_src emacs-lisp :wrap example
\"line 1
,* headline 2
,* headline 3
,* headline 4
,* headline 5
\"
#+end_src
"
      (org-babel-execute-src-block)
      (let ((case-fold-search t)) (search-forward "result" nil t))
      (downcase (buffer-substring-no-properties (line-beginning-position 2)
						(point-max))))))
  (should
   (string-match-p
    ",#"
    (org-test-with-temp-text "#+begin_src emacs-lisp :wrap export foo
\"#+keyword: value\"
#+end_src"
      (org-babel-execute-src-block)
      (buffer-string))))
  (should
   (string-match-p
    ",#"
    (org-test-with-temp-text "#+begin_src emacs-lisp :wrap src foo
\"#+keyword: value\"
#+end_src"
      (org-babel-execute-src-block)
      (buffer-string))))
  ;; Do not comma-escape when the block is not verbatim.
  (should-not
   (string-match-p
    ",#"
    (org-test-with-temp-text "#+begin_src emacs-lisp :wrap special
\"#+keyword: value\"
#+end_src"
      (org-babel-execute-src-block)
      (buffer-string)))))

(ert-deftest test-ob/safe-header-args ()
  "Detect safe and unsafe header args."
  (let ((safe-args '((:cache . "foo")
		     (:results . "output")
		     (:eval . "never")
		     (:eval . "query")))
	(unsafe-args '((:eval . "yes")
		       (:results . "output file")
		       (:foo . "bar")))
	(malformed-args '((bar . "foo")
			  ("foo" . "bar")
			  :foo))
	(safe-p (org-babel-header-args-safe-fn org-babel-safe-header-args)))
    (dolist (arg safe-args)
      (should (org-babel-one-header-arg-safe-p arg org-babel-safe-header-args)))
    (dolist (arg unsafe-args)
      (should (not (org-babel-one-header-arg-safe-p arg org-babel-safe-header-args))))
    (dolist (arg malformed-args)
      (should (not (org-babel-one-header-arg-safe-p arg org-babel-safe-header-args))))
    (should (not (funcall safe-p (append safe-args unsafe-args))))))

(ert-deftest test-ob/noweb-expansions-in-cache ()
  "Ensure that noweb expansions are expanded before caching."
  (defvar noweb-expansions-in-cache-var)
  (let ((noweb-expansions-in-cache-var 0))
    (org-test-with-temp-text "
#+name: foo
#+begin_src emacs-lisp
  \"I said\"
#+end_src

#+name: bar
#+begin_src emacs-lisp :noweb yes :cache yes
  (setq noweb-expansions-in-cache-var
        (+ 1 noweb-expansions-in-cache-var))
  (concat <<foo>> \" check noweb expansions\")
#+end_src
"
      ;; run the second block to create the cache
      (goto-char (point-min))
      (re-search-forward (regexp-quote "#+name: bar"))
      (should (string= "I said check noweb expansions"
		       (org-babel-execute-src-block)))
      (should (= noweb-expansions-in-cache-var 1))
      ;; change the value of the first block
      (goto-char (point-min))
      (re-search-forward (regexp-quote "said"))
      (goto-char (match-beginning 0))
      (insert "haven't ")
      (re-search-forward (regexp-quote "#+name: bar"))
      (should (string= "I haven't said check noweb expansions"
		       (org-babel-execute-src-block)))
      (should (= noweb-expansions-in-cache-var 2)))))

(ert-deftest test-ob/file-ext-and-output-dir ()
  (org-test-at-id "93573e1d-6486-442e-b6d0-3fedbdc37c9b"
    (org-babel-next-src-block)
    (should (equal  "file-ext-basic.txt"
		   (cdr (assq :file (nth 2 (org-babel-get-src-block-info t))))))
    (org-babel-next-src-block)
    (should (equal "foo/file-ext-dir-relative.txt"
		   (cdr (assq :file (nth 2 (org-babel-get-src-block-info t))))))
    (org-babel-next-src-block)
    (should (equal  "foo/file-ext-dir-relative-slash.txt"
		   (cdr (assq :file (nth 2 (org-babel-get-src-block-info t))))))
    (org-babel-next-src-block)
    (should (equal  "/tmp/file-ext-dir-absolute.txt"
		   (cdr (assq :file (nth 2 (org-babel-get-src-block-info t))))))
    (org-babel-next-src-block)
    (should (equal  "foo.bar"
		   (cdr (assq :file (nth 2 (org-babel-get-src-block-info t))))))
    (org-babel-next-src-block)
    (should (equal "xxx/foo.bar"
		   (cdr (assq :file (nth 2 (org-babel-get-src-block-info t))))))
    ))

(ert-deftest test-ob/file-mode ()
  "Ensure that :file-mode results in expected permissions."
  (should
   (equal #o755
          (org-test-with-temp-text-in-file "
#+begin_src emacs-lisp :results file :file t.sh :file-mode (identity #o755)
nil
#+end_src"
            (org-babel-next-src-block)
            (org-babel-execute-src-block)
            (unwind-protect
                (file-modes "t.sh")
              (delete-file "t.sh"))))))

(ert-deftest test-ob-core/dir-attach ()
  "Test :dir header using special 'attach value"
  (should
   (org-test-with-temp-text-in-file
    "* 'attach Symbol
<point>#+begin_src elisp :dir 'attach :results file
(with-temp-file \"test.txt\" (insert \"attachment testing\n\"))
\"test.txt\"
#+end_src"
    (org-id-get-create)
    (org-babel-execute-src-block)
    (goto-char (org-babel-where-is-src-block-result))
    (forward-line)
    (and
     (file-exists-p (format "%s/test.txt" (org-attach-dir nil t)))
     (string= (buffer-substring-no-properties (point) (line-end-position))
              "[[attachment:test.txt]]"))))
  (should
   (org-test-with-temp-text-in-file
    "* 'attach String
<point>#+begin_src elisp :dir \"'attach\" :results file
(with-temp-file \"test.txt\" (insert \"attachment testing\n\"))
\"test.txt\"
#+end_src"
    (org-id-get-create)
    (org-babel-execute-src-block)
    (goto-char (org-babel-where-is-src-block-result))
    (forward-line)
    (and
     (file-exists-p (format "%s/test.txt" (org-attach-dir nil t)))
     (string= (buffer-substring-no-properties (point) (line-end-position))
              "[[attachment:test.txt]]"))))
  (should
   (org-test-with-temp-text-in-file
    "* 'attach with Existing DIR property
:PROPERTIES:
:DIR:      custom-attach-dir
:END:

<point>#+begin_src elisp :dir 'attach :results file
(with-temp-file \"test.txt\" (insert \"attachment testing\n\"))
\"test.txt\"
#+end_src"
    (message "DIR: %s" (org-attach-dir t))
    (org-babel-execute-src-block)
    (goto-char (org-babel-where-is-src-block-result))
    (forward-line)
    (and
     (file-exists-p (format "%s/test.txt" (org-attach-dir nil t)))
     (string= (buffer-substring-no-properties (point) (line-end-position))
              "[[attachment:test.txt]]"))))
  ;; Strip attach dir from the file path.
  (should
   (org-test-with-temp-text-in-file
    "* heading
:PROPERTIES:
:DIR:      custom-attach-dir
:END:

<point>#+begin_src elisp :results value file
\"custom-attach-dir/test.txt\"
#+end_src"
    (message "DIR: %s" (org-attach-dir t))
    (org-babel-execute-src-block)
    (goto-char (org-babel-where-is-src-block-result))
    (forward-line)
     (string= (buffer-substring-no-properties (point) (line-end-position))
              "[[attachment:test.txt]]")))
  (should-error
   (org-test-with-temp-text-in-file
    "* 'attach with no ID or DIR
<point>#+begin_src elisp :dir 'attach :results file
(with-temp-file \"test.txt\" (insert \"attachment testing\n\"))
\"test.txt\"
#+end_src"
    (org-babel-execute-src-block)
    (goto-char (org-babel-where-is-src-block-result))
    (forward-line)
    (and
     (file-exists-p (format "%s/test.txt" (org-attach-dir nil t)))
     (string= (buffer-substring-no-properties (point) (line-end-position))
              "[[attachment:test.txt]]")))))

(ert-deftest test-ob-core/dir-mkdirp ()
  "Test :mkdirp with :dir header combination."
  (should-not
   (org-test-with-temp-text-in-file
       "#+begin_src emacs-lisp :dir \"data/code\"
t
#+end_src"
     (org-babel-execute-src-block)
     (message default-directory)
     (file-directory-p "data/code")))
  (should-not
   (org-test-with-temp-text-in-file
       "#+begin_src emacs-lisp :mkdirp no :dir \"data/code\"
t
#+end_src"
     (org-babel-execute-src-block)
     (message default-directory)
     (file-directory-p "data/code")))
  (should
   (org-test-with-temp-text-in-file
       "#+begin_src emacs-lisp :mkdirp yes :dir \"data/code\"
t
#+end_src"
     (org-babel-execute-src-block)
     (message default-directory)
     (prog1 (file-directory-p "data/code")
       (delete-directory "data" t))))
  (should
   (equal "/tmp/test-dir-no-mkdirp/"
	  (org-test-with-temp-text-in-file
	      "#+begin_src emacs-lisp :dir /tmp/test-dir-no-mkdirp
default-directory
#+end_src"
	    (org-babel-execute-src-block)))))

(ert-deftest test-ob/script-escape ()
  ;; Empty list.
  (should (equal nil (org-babel-script-escape "[]")))
  (should (equal nil (org-babel-script-escape "()")))
  (should (equal nil (org-babel-script-escape "'()")))
  (should (equal nil (org-babel-script-escape "{}")))
  ;; Delimited lists of numbers
  (should (equal '(1 2 3)
		 (org-babel-script-escape "[1 2 3]")))
  (should (equal '(1 2 3)
		 (org-babel-script-escape "{1 2 3}")))
  (should (equal '(1 2 3)
		 (org-babel-script-escape "(1 2 3)")))
  ;; Delimited lists of double-quoted strings
  (should (equal '("foo" "bar")
		 (org-babel-script-escape "(\"foo\" \"bar\")")))
  (should (equal '("foo" "bar")
		 (org-babel-script-escape "[\"foo\" \"bar\"]")))
  (should (equal '("foo" "bar")
		 (org-babel-script-escape "{\"foo\" \"bar\"}")))
  ;; ... with commas
  (should (equal '("foo" "bar")
		 (org-babel-script-escape "(\"foo\", \"bar\")")))
  (should (equal '("foo" "bar")
		 (org-babel-script-escape "[\"foo\", \"bar\"]")))
  (should (equal '("foo" "bar")
		 (org-babel-script-escape "{\"foo\", \"bar\"}")))
  ;; Delimited lists of single-quoted strings
  (should (equal '("foo" "bar")
		 (org-babel-script-escape "('foo' 'bar')")))
  (should (equal '("foo" "bar")
		 (org-babel-script-escape "['foo' 'bar']")))
  (should (equal '("foo" "bar")
		 (org-babel-script-escape "{'foo' 'bar'}")))
  ;; ... with commas
  (should (equal '("foo" "bar")
		 (org-babel-script-escape "('foo', 'bar')")))
  (should (equal '("foo" "bar")
		 (org-babel-script-escape "['foo', 'bar']")))
  (should (equal '("foo" "bar")
		 (org-babel-script-escape "{'foo', 'bar'}")))
  ;; Single quoted strings
  (should (equal "foo"
		 (org-babel-script-escape "'foo'")))
  ;; ... with internal double quote
  (should (equal "foo\"bar"
		 (org-babel-script-escape "'foo\"bar'")))
  ;; ... with internal backslash
  (should (equal "foo\\bar"
		 (org-babel-script-escape "'foo\\bar'")))
  ;; ... with internal escaped backslash
  (should (equal "foo\\bar"
		 (org-babel-script-escape "'foo\\\\bar'")))
  ;; ... with internal backslash-double quote
  (should (equal "foo\\\"bar"
		 (org-babel-script-escape "'foo\\\"bar'")))
  ;; ... with internal escaped backslash-double quote
  (should (equal "foo\\\"bar"
		 (org-babel-script-escape "'foo\\\\\"bar'")))
  ;; ... with internal escaped single quote
  (should (equal "foo'bar"
		 (org-babel-script-escape "'foo\\'bar'")))
  ;; ... with internal escaped backslash-escaped single quote
  (should (equal "foo\\'bar"
		 (org-babel-script-escape "'foo\\\\\\'bar'")))
  ;; Double quoted strings
  (should (equal "foo"
		 (org-babel-script-escape "\"foo\"")))
  ;; ... with internal single quote
  (should (equal "foo'bar"
		 (org-babel-script-escape "\"foo'bar\"")))
  ;; ... with internal backslash
  (should (equal "foo\\bar"
		 (org-babel-script-escape "\"foo\\bar\"")))
  ;; ... with internal escaped backslash
  (should (equal "foo\\bar"
		 (org-babel-script-escape "\"foo\\\\bar\"")))
  ;; ... with internal backslash-single quote
  (should (equal "foo\\'bar"
		 (org-babel-script-escape "\"foo\\'bar\"")))
  ;; ... with internal escaped backslash-single quote
  (should (equal "foo\\'bar"
		 (org-babel-script-escape "\"foo\\\\'bar\"")))
  ;; ... with internal escaped double quote
  (should (equal "foo\"bar"
		 (org-babel-script-escape "\"foo\\\"bar\"")))
  ;; ... with internal escaped backslash-escaped double quote
  (should (equal "foo\\\"bar"
		 (org-babel-script-escape "\"foo\\\\\\\"bar\""))))

(ert-deftest test-ob/process-params-no-duplicates ()
  (should
   (equal (org-babel-process-params '((:colname-names)
				      (:rowname-names)
				      (:result-params)
				      (:result-type)
				      (:var . "\"foo\"")))
	  '((:var)
	    (:colname-names)
	    (:rowname-names)
	    (:result-params)
	    (:result-type . value)))))

(defun org-test-babel-confirm-evaluate (eval-value)
  (org-test-with-temp-text (format "#+begin_src emacs-lisp :eval %s
  nil
#+end_src" eval-value)
	(goto-char (point-min))
	(let ((info (org-babel-get-src-block-info)))
	   (org-babel-check-confirm-evaluate info))))

(ert-deftest test-ob/check-eval ()
  (let ((org-confirm-babel-evaluate t))
    ;; Non-export tests
    (dolist (pair '(("no" . nil)
		    ("never" . nil)
		    ("query" . query)
		    ("yes" . query)))
      (should (eq (org-test-babel-confirm-evaluate (car pair)) (cdr pair))))
    ;; Export tests
    (let ((org-babel-exp-reference-buffer t))
      (dolist (pair '(("no" . nil)
		      ("never" . nil)
		      ("query" . query)
		      ("yes" . query)
		      ("never-export" . nil)
		      ("no-export" . nil)
		      ("query-export" . query)))
	(message (car pair))
	(should (eq (org-test-babel-confirm-evaluate (car pair)) (cdr pair))))))
  (let ((org-confirm-babel-evaluate nil))
    ;; Non-export tests
    (dolist (pair '(("no" . nil)
		    ("never" . nil)
		    ("query" . query)
		    ("yes" . t)))
      (should (eq (org-test-babel-confirm-evaluate (car pair)) (cdr pair))))
    ;; Export tests
    (let ((org-babel-exp-reference-buffer t))
      (dolist (pair '(("no" . nil)
		      ("never" . nil)
		      ("query" . query)
		      ("yes" . t)
		      ("never-export" . nil)
		      ("no-export" . nil)
		      ("query-export" . query)))
	(message (car pair))
	(should (eq (org-test-babel-confirm-evaluate (car pair)) (cdr pair)))))))

(ert-deftest test-ob/check-eval-noweb-expanded ()
  "`org-confirm-babel-evaluate' function receives expanded noweb refs."
  (should
   (equal t
	  (org-test-with-temp-text "
#+name: foo
#+begin_src emacs-lisp
  :bar
#+end_src

<point>#+begin_src emacs-lisp :noweb yes
  <<foo>>
#+end_src"
	    (let ((org-confirm-babel-evaluate
		   (lambda (_ body)
		     (not (string-match-p ":bar" body)))))
	      (org-babel-check-confirm-evaluate
	       (org-babel-get-src-block-info))))))
  ;; The code block passed to `org-confirm-babel-evaluate' does not
  ;; include coderefs.
  (should
   (equal t
	  (org-test-with-temp-text "
#+name: foo
#+begin_src emacs-lisp
  :bar
#+end_src

<point>#+begin_src emacs-lisp :noweb yes
  #(ref:foo)
  <<foo>>
#+end_src"
	    (let ((org-coderef-label-format "#(ref:%s)")
		  (org-confirm-babel-evaluate
		   (lambda (_ body)
		     (string-match-p "ref:foo" body))))
	      (org-babel-check-confirm-evaluate
	       (org-babel-get-src-block-info)))))))

(defun org-test-ob/update-block-body ()
  "Test `org-babel-update-block-body' specifications."
  (should
   (equal "#+begin_src elisp\n  2\n#+end_src"
	  (let ((org-edit-src-content-indentation 2))
	    (org-test-with-temp-text "#+begin_src elisp\n(+ 1 1)\n#+end_src"
	      (org-babel-update-block-body "2")
	      (buffer-string)))))
  ;; Preserve block indentation.
  (should
   (equal "  #+begin_src elisp\n   2\n  #+end_src"
	  (let ((org-edit-src-content-indentation 1))
	    (org-test-with-temp-text
		"  #+begin_src elisp\n  (+ 1 1)\n  #+end_src"
	      (org-babel-update-block-body "2")
	      (buffer-string)))))
  ;; Ignore NEW-BODY global indentation.
  (should
   (equal "#+begin_src elisp\n  2\n#+end_src"
	  (let ((org-edit-src-content-indentation 2))
	    (org-test-with-temp-text "#+begin_src elisp\n(+ 1 1)\n#+end_src"
	      (org-babel-update-block-body "      2")
	      (buffer-string)))))
  ;; When indentation should be preserved ignore the two rules above.
  (should
   (equal "  #+begin_src elisp\n2\n  #+end_src"
	  (let ((org-edit-src-content-indentation 1)
		(org-src-preserve-indentation t))
	    (org-test-with-temp-text
		"  #+begin_src elisp\n  (+ 1 1)\n  #+end_src"
	      (org-babel-update-block-body "2")
	      (buffer-string)))))
  (should
   (equal "  #+begin_src elisp -i\n2\n  #+end_src"
	  (let ((org-edit-src-content-indentation 1))
	    (org-test-with-temp-text
		"  #+begin_src elisp -i\n  (+ 1 1)\n  #+end_src"
	      (org-babel-update-block-body "2")
	      (buffer-string)))))
  (should
   (equal "#+begin_src elisp\n      2\n#+end_src"
	  (let ((org-edit-src-content-indentation 2)
		(org-src-preserve-indentation t))
	    (org-test-with-temp-text "#+begin_src elisp\n(+ 1 1)\n#+end_src"
	      (org-babel-update-block-body "      2")
	      (buffer-string)))))
  (should
   (equal "#+begin_src elisp -i\n      2\n#+end_src"
	  (let ((org-edit-src-content-indentation 2)
		(org-src-preserve-indentation t))
	    (org-test-with-temp-text "#+begin_src elisp -i\n(+ 1 1)\n#+end_src"
	      (org-babel-update-block-body "      2")
	      (buffer-string))))))

(ert-deftest test-ob/find-named-result ()
  "Test `org-babel-find-named-result' specifications."
  (should
   (= 1
      (org-test-with-temp-text "#+results: foo\n: result"
	(org-babel-find-named-result "foo"))))
  (should-not
   (org-test-with-temp-text "#+results: foo\n: result"
     (org-babel-find-named-result "bar")))
  (should-not
   (org-test-with-temp-text "#+results: foobar\n: result"
     (org-babel-find-named-result "foo")))
  ;; Search is case insensitive.
  (should
   (org-test-with-temp-text "#+RESULTS: FOO\n: result"
     (org-babel-find-named-result "foo")))
  ;; Handle hash in results keyword.
  (should
   (org-test-with-temp-text "#+results[hash]: FOO\n: result"
     (org-babel-find-named-result "foo")))
  ;; Accept orphaned affiliated keywords.
  (should
   (org-test-with-temp-text "#+results: foo"
     (org-babel-find-named-result "foo"))))

(ert-deftest test-ob/where-is-src-block-result ()
  "Test `org-babel-where-is-src-block-result' specifications."
  ;; Find anonymous results.
  (should
   (equal "#+RESULTS:"
	  (org-test-with-temp-text
	      "#+BEGIN_SRC emacs-lisp\n(+ 1 1)\n#+END_SRC\n\n#+RESULTS:\n: 2"
	    (goto-char (org-babel-where-is-src-block-result))
	    (buffer-substring-no-properties (point) (line-end-position)))))
  ;; Find named results.  Those have priority over anonymous ones.
  (should
   (equal "#+RESULTS: example"
	  (org-test-with-temp-text
	      "
<point>#+NAME: example
#+BEGIN_SRC emacs-lisp
\(+ 1 1)
#+END_SRC

#+RESULTS: example
: 2"
	    (goto-char (org-babel-where-is-src-block-result))
	    (buffer-substring-no-properties (point) (line-end-position)))))
  (should
   (equal "#+RESULTS: example"
	  (org-test-with-temp-text
	      "
<point>#+NAME: example
#+BEGIN_SRC emacs-lisp
\(+ 1 1)
#+END_SRC

#+RESULTS:
: fake

#+RESULTS: example
: 2"
	    (goto-char (org-babel-where-is-src-block-result))
	    (buffer-substring-no-properties (point) (line-end-position)))))
  ;; Return nil when no result is found.
  (should-not
   (org-test-with-temp-text "#+BEGIN_SRC emacs-lisp\n(+ 1 1)\n#+END_SRC"
     (org-babel-where-is-src-block-result)))
  (should-not
   (org-test-with-temp-text
       "- item\n  #+BEGIN_SRC emacs-lisp\n(+ 1 1)\n#+END_SRC\n\n"
     (org-babel-where-is-src-block-result)))
  ;; When optional argument INSERT is non-nil, add RESULTS keyword
  ;; whenever no RESULTS can be found.
  (should
   (equal
    "#+RESULTS:"
    (org-test-with-temp-text "#+BEGIN_SRC emacs-lisp\n(+ 1 1)\n#+END_SRC"
      (let ((org-babel-results-keyword "RESULTS"))
	(goto-char (org-babel-where-is-src-block-result t)))
      (buffer-substring-no-properties (point) (line-end-position)))))
  ;; Insert a named RESULTS keyword if possible.
  (should
   (equal
    "#+RESULTS: e"
    (org-test-with-temp-text
	"#+NAME: e\n#+BEGIN_SRC emacs-lisp\n(+ 1 1)\n#+END_SRC"
      (let ((org-babel-results-keyword "RESULTS"))
	(goto-char (org-babel-where-is-src-block-result t)))
      (buffer-substring-no-properties (point) (line-end-position)))))
  ;; When optional argument HASH is provided, clear RESULTS keyword
  ;; and related contents if they do not match it.
  (should
   (equal
    "#+RESULTS[bbbb]:"
    (org-test-with-temp-text
	"#+BEGIN_SRC emacs-lisp\n(+ 1 1)\n#+END_SRC\n\n#+RESULTS[aaaa]:\n: 3"
      (let ((org-babel-results-keyword "RESULTS"))
	(goto-char (org-babel-where-is-src-block-result nil nil "bbbb")))
      (org-trim (buffer-substring-no-properties (point) (point-max))))))
  (should
   (equal
    "#+RESULTS[bbbb]:"
    (org-test-with-temp-text
	"#+BEGIN_SRC emacs-lisp\n(+ 1 1)\n#+END_SRC\n\n#+RESULTS[aaaa]:"
      (let ((org-babel-results-keyword "RESULTS"))
	(goto-char (org-babel-where-is-src-block-result nil nil "bbbb")))
      (org-trim (buffer-substring-no-properties (point) (point-max))))))
  ;; Handle hashes with times.
  (should
   (equal
    "#+RESULTS[(2014-03-04 00:41:10) bbbb]:"
    (org-test-with-temp-text
	"#+BEGIN_SRC emacs-lisp
\(+ 1 1)
#+END_SRC

#+RESULTS[(2012-03-29 16:40:12) aaaa]:"
      (let ((org-babel-results-keyword "RESULTS")
	    (org-babel-hash-show-time t))
	(cl-letf (((symbol-function 'format-time-string)
		   (lambda (&rest _) "(2014-03-04 00:41:10)")))
	  (goto-char (org-babel-where-is-src-block-result nil nil "bbbb"))
	  (org-trim (buffer-substring-no-properties (point) (point-max))))))))
  (should
   (equal
    "#+RESULTS[(2012-03-29 16:40:12) aaaa]:"
    (org-test-with-temp-text
	"
<point>#+BEGIN_SRC emacs-lisp
\(+ 1 1)
#+END_SRC

#+RESULTS[(2012-03-29 16:40:12) aaaa]:"
      (let ((org-babel-results-keyword "RESULTS")
	    (org-babel-hash-show-time t))
	(cl-letf (((symbol-function 'format-time-string)
		   (lambda (&rest _) "(2014-03-04 00:41:10)")))
	  (goto-char (org-babel-where-is-src-block-result nil nil "aaaa"))
	  (org-trim (buffer-substring-no-properties (point) (point-max))))))))
  ;; RESULTS keyword may not be the last affiliated keyword.
  (should
   (equal
    "#+RESULTS[bbbb]:"
    (org-test-with-temp-text
	"
<point>#+BEGIN_SRC emacs-lisp
\(+ 1 1)
#+END_SRC

#+RESULTS[aaaa]:
#+NAME: e
: 3"
      (let ((org-babel-results-keyword "RESULTS"))
	(goto-char (org-babel-where-is-src-block-result nil nil "bbbb")))
      (org-trim (buffer-substring-no-properties (point) (point-max))))))
  ;; HASH does nothing if no RESULTS can be found.  However, if INSERT
  ;; is also non-nil, RESULTS keyword is inserted along with the
  ;; expected hash.
  (should
   (equal
    "#+BEGIN_SRC emacs-lisp\n(+ 1 1)\n#+END_SRC"
    (org-test-with-temp-text "#+BEGIN_SRC emacs-lisp\n(+ 1 1)\n#+END_SRC"
      (org-babel-where-is-src-block-result nil nil "bbbb")
      (buffer-string))))
  (should
   (equal
    "#+RESULTS[bbbb]:"
    (org-test-with-temp-text "#+BEGIN_SRC emacs-lisp\n(+ 1 1)\n#+END_SRC"
      (let ((org-babel-results-keyword "RESULTS"))
	(goto-char (org-babel-where-is-src-block-result t nil "bbbb")))
      (org-trim (buffer-substring-no-properties (point) (point-max)))))))

(ert-deftest test-ob/goto-named-src-block ()
    "Test interactive use of `org-babel-goto-named-src-block'."
    (org-test-with-temp-text-in-file
		"
#+NAME: abc
#+BEGIN_SRC emacs-lisp :results value
(1+ 1)
#+END_SRC
#+CALL: abc( lorem() ) :results raw :wrap EXAMPLE
#+BEGIN_SRC emacs-lisp
<<abc>>
#+END_SRC
abc
#+RESULTS: abc
: 2
"
       ;; non-existent name
       (should-not
         (execute-kbd-macro  "\M-xorg-babel-goto-named-src-block\nno-name\n"))
       ;; correct name
       (execute-kbd-macro  "\M-xorg-babel-goto-named-src-block\nabc\n")
       (should  (= 14 (point)))
       ;; call line   - autocompletion
       (forward-line 3)
       (execute-kbd-macro  "\M-xorg-babel-goto-named-src-block\n\n")
       (should  (= 14 (point)))
       ;; noweb reference  - autocompletion
       (forward-line 5)
       (execute-kbd-macro  "\M-xorg-babel-goto-named-src-block\n\n")
       (should  (= 14 (point)))
       ;; at symbol  - autocompletion
       (forward-line 7)
       (execute-kbd-macro  "\M-xorg-babel-goto-named-src-block\n\n")
       (should  (= 14 (point)))
       ;; in results  - autocompletion
       (forward-line 8)
       (execute-kbd-macro  "\M-xorg-babel-goto-named-src-block\n\n")
       (should  (= 14 (point)))
       (forward-line 9)
       (execute-kbd-macro  "\M-xorg-babel-goto-named-src-block\n\n")
       (should  (= 14 (point)))))

(ert-deftest test-ob/evaluate-body-with-coderefs ()
  (should
   (= 2
      (org-test-with-temp-text
	  "#+begin_src emacs-lisp -l \"#(ref:%s)\"\n2 #(ref:foo)\n#+end_src"
	(org-babel-execute-src-block))))
  (should
   (= 3
      (org-test-with-temp-text
	  "#+begin_src emacs-lisp\n3 #(ref:foo)\n#+end_src"
	(let ((org-coderef-label-format "#(ref:%s)"))
	  (org-babel-execute-src-block))))))

(ert-deftest test-ob/string-to-number ()
    (should (=  0      (org-babel--string-to-number "0")))
    (should (=  1      (org-babel--string-to-number "1")))
    (should (eq nil    (org-babel--string-to-number "1 2")))
    (should (=  1000.0 (org-babel--string-to-number "1e3")))
    (should (eq 0      (org-babel--string-to-number "000")))
    (should (eq 1      (org-babel--string-to-number "001")))
    (should (eq 10     (org-babel--string-to-number "010")))
    (should (=  100    (org-babel--string-to-number "100")))
    (should (=  0.1    (org-babel--string-to-number "0.1")))
    (should (=  1.0    (org-babel--string-to-number "1.0"))))

(ert-deftest test-ob/import-elisp-from-file ()
  "Test `org-babel-import-elisp-from-file'."
  (should
   (equal
    (org-test-with-temp-text-in-file "line 1\nline 2\n"
      (cl-letf (((symbol-function 'display-warning)
		 (lambda (&rest _) (error "No warnings should occur"))
		 (org-table-convert-region-max-lines 2)))
	(org-babel-import-elisp-from-file (buffer-file-name))))
    '(("line" 1)
      ("line" 2))))
  ;; If an error occurs during table conversion, it is shown with
  ;; `display-warning' rather than as a message to make sure the
  ;; caller sees it.
  (should-error
   (org-test-with-temp-text-in-file "line 1\nline 2\n"
     (cl-letf (((symbol-function 'display-warning)
		(lambda (&rest _) (error "Warning should be displayed")))
	       (org-table-convert-region-max-lines 1))
       (org-babel-import-elisp-from-file (buffer-file-name)))))
  ;; But an empty file (as is the case when there are no execution
  ;; results) does not trigger a warning.
  (should-not
   (org-test-with-temp-text-in-file ""
     (cl-letf (((symbol-function 'display-warning)
		(lambda (&rest _) (error "No warnings should occur"))))
       (org-babel-import-elisp-from-file (buffer-file-name))))))

(provide 'test-ob)

;;; test-ob ends here